PROBLEM TO BE SOLVED: To provide an excellent animal meat product improver by improving tapioca starch, and to provide an animal meat product through the addition of the improver.SOLUTION: Oil-processed acetylated tapioca starch which is made by oil-processed acetylated tapioca starch made by acetylating tapioca starch by vinyl acetate is used as the animal meat product improver. It is preferable that the oil-processed acetylated tapioca starch has an acetyl group content of 0.2-1 mass%, and when giving while stirring, a continuous heating condition from 50°C to 95°C for 30 min to a water suspension bringing the concentration of the starch to 6 mass% at a dry matter conversion followed by retaining for 30 min at 95°C, a breakdown value obtained by subtracting a bottom viscosity after retaining for 30 min at 95°C from a peak viscosity of the starch suspension is ≤200 BU. Furthermore, a heating swelling degree is preferably 20-40 times.COPYRIGHT: (C)2013,JPO&INPIT【課題】タピオカ澱粉を改良して、優れた畜肉製品用改良剤を提供し、更にそれを添加してなる畜肉製品を提供する。【解決手段】タピオカ澱粉を酢酸ビニルでアセチル化してなるアセチル化タピオカ澱粉に、油脂加工を施してなる、油脂加工されたアセチル化タピオカ澱粉を、畜肉製品用改良剤として用いる。前記油脂加工されたアセチル化タピオカ澱粉は、アセチル基含量が0.2~1質量%であり、該澱粉の濃度が乾燥物換算で6質量%となる水懸濁液を撹拌しながら50℃から95℃に至る連続的な加温状態を30分間に亘って与えて更に95℃で30分間保持したときに、該澱粉懸濁液のピーク粘度から、95℃で30分間保持した後のボトム粘度を差し引いたブレークダウン値が200BU以下であることが好ましい。また、加熱膨潤度が20~40倍であることが好ましい。【選択図】なし
